/*
 * Copyright (c) 2019 The StreamX Project
 * <p>
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.streamxhub.streamx.plugin.profiling;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

/** @author benjobs */
public class ArgumentUtils {

  public static boolean needToUpdateArg(String argValue) {
    return argValue != null && !argValue.isEmpty();
  }

  public static String getArgumentSingleValue(
      Map<String, List<String>> parsedArgs, String argName) {
    List<String> list = parsedArgs.get(argName);
    if (list == null) {
      return null;
    }

    if (list.isEmpty()) {
      return "";
    }

    return list.get(list.size() - 1);
  }

  public static List<String> getArgumentMultiValues(
      Map<String, List<String>> parsedArgs, String argName) {
    List<String> list = parsedArgs.get(argName);
    if (list == null) {
      return new ArrayList<>();
    }
    return list;
  }
}
